FILE - In this June 23, 2011 file photo, a U.S. Fish and Wildlife Service technician holds a Puerto Rican parrot chick, born in captivity, at El Yunque National Forest protected habitat in Luquillo, Puerto Rico. One of the world's most endangered bird species has made a major comeback in the U.S. territory of Puerto Rico. The counted population of the Puerto Rican parrot fell to just 13 during its darkest days. But researchers said Thursday, Aug. 15, 2013 that there are nearly 400 parrots in captivity and more than 100 being tracked in the wild across the island. (AP Photo/Ricardo Arduengo, File)

FILE - In this June 23, 2011 file photo, a U.S. Fish and Wildlife Service technician holds a Puerto Rican parrot chick, born in captivity, at El Yunque National Forest protected habitat in Luquillo, Puerto Rico. One of the world's most endangered bird species has made a major comeback in the U.S. territory of Puerto Rico. The counted population of the Puerto Rican parrot fell to just 13 during its darkest days. But researchers said Thursday, Aug. 15, 2013 that there are nearly 400 parrots in captivity and more than 100 being tracked in the wild across the island. (AP Photo/Ricardo Arduengo, File)